What in the world is SIBO? SIBO stands for "small intestine bacterial overgrowth" and is one of the more common problems underlying a long list of symptoms and conditions. With SIBO, an increased number or an abnormal type of bacteria are found in the small intestine, and colonies of microbes that should be in the large intestine are found there as well. SIBO is a relatively new diagnosis and is not commonly tested or treated, leaving many patients with chronic gastrointestinal problems without any answers or solutions. At New Direction Natural Medicine, we offer both testing and treatment for SIBO.